Piston-rod construction



Patented Apr. 20, 1926.

f UNITED @STATES 1,581,255 PATENT- joFLFicE..

.A. WATTS, for SPRINGFIELD, onto, Assrenon yTo THE .MILLEEIMPROVED `'er-.Irs ENGINE COMPANY, 0E SPRINGFIELD, OHIO, A CORPORATION or oI'I-Io.

PI-vsToN-non CONSTRUCTION.

To all ifww/m t may concern.'

Be it known that I, ELMER'A. VA'TTS, a .citizen 4off the United States, residing at Springfield, in the county of Clarkand State of Ohio, have invented certain new and useful Improvements inPiston-Rod Constructions, of which the following is a specilication, reference being .had therein to the accompanying' drawing.

My invention relates to internal combustion engines and in particular .to ythe piston and piston .rod therefor.

It is the object of my invention to provide a detachable piston and piston rod so that the piston rod, slide and mechanism may be withdrawn from :the cylinder without dis- 'i tu-rbng the piston.

connection with theslideand a piston rod.`

It is an .additional object of my invention to provide la tubular piston rod having -a forked end to provide a broad bearing surface for the engagement of the rod with the connecting link to the .ily wheelcrank shaft.

It .is an additional object` of my invention to provide a splash plate `on the piston rod. f

It is a further object of my invention to provide :a mechanical construction by having the rod and support yon 'the slide a sep'- ara-te member .from the `piston which facilitates manufacture .and permits of the selection of different materials forthe two structures. n, f

Referring to the accompanying drawings:

Figure 1 is a sideyelevation of the asenlibled piston rod, piston and connecting Figure 2 is a plan view thereof; and

Figure 3 is a section on the line 3-3 of Figure 2 looking in `thedirection ofthe arrows.

Referring to the drawings in detail, 1 is a piston having an apron 2. The piston contains an interiorly arranged depending cylindrical piston rod support 3 having an enlarged head 4 for the reception of a plurality of spaced bolts 5 which connects the piston rod 6 thereto. The piston rod is formed with an enlarged head 7 through which these bolts pass. On the piston rod is mounted a splash plate 8 by a plurality of bolts 9 on the laterally extending ring 10 Ywhich is integral with the piston ro-d.

,Application zled October 173, 1924. Serial No. 743,431.

The piston rod has a tubular aperture in the `center designated 11 which is open at either end, thus securing light weight vwith rigidity ofthe structure. The piston rod terminates in av pair of spaced outwardly flaring parallel arms 12 which terminate in bearing-eyes 13. These members 13 are arv ranged in the'form of split collars being separated at 14. TheyA are provided with enlarged tubularshoulders 15 for the reception of bolts 16 to hold the halves of the collars together.l yThe base `of the arms are extended into pedestals 1,7 which are parallel to one .another and are attached to a com mon slide block 18 by the bolts 19. f These pedestals are formed with kthe ribs 20, 21 between the points of attachment to give great rigidity to the structure with the min-- imum of weight.

In the split collars or eyes 13 are splitbearing rings '.22 embracing a transversely 'located shaft upon which is mounted the bearing collarl 24 whichl is bolted by the bolts `25 tothe-connecting linkl 26. This link in turn is connected in the conventional manner to the ycrank Varm `of the crank shaft and ily wheel by the split bearing collar2-7 which is attached to theV connecting .link l26 by the. bolts 28 passing through the. head 29 of the connecting link 26. v l

The structure' may be provided with an oil-catch basin of conventional design designated 30.

,'It will be realized that in internal combustion -engines where it is found desirable to move the' piston rod out of the way without disturbing 'the piston that this construction is of great advantage. It also largely facilitates the economical restoration or repair of the piston head or piston proper. The piston rod is a structure of relatively small wear, while the piston is subjected to constant wear. f Y y It will be understood that the sliding block 18'may reciprocate in any desired form of conventional guide which does not form a part of the present invention.

It will be understood that I desire to comprehend within my invention such modiications as may be necessary to adapt it to varying conditions of use.

' Having thus fully described my invention, what I claim as new and desire to 'secure by Letters Patent, is

l. In an internal combustion engine, a detachable piston and piston rod the point of connection being within the piston skirt, said piston rod having a bifurcated outer end formed into parallel arms for supporting a shaft to which is connected a connecting link, outside of the skirt to prevent movement of the link within and touching the skirt to provide free access for the adjustment and disengagement of the link with the rod.

2, In an internal combustion engine, a detachable piston and piston rod, the point of connection being within the piston skirt, said piston rod having a bifurcated outer end formed into parallel arms for supporting a shaft to which is connected a connecting link, a connecting link, said arms being extended downwardly to form pedestals for attachment on a slide block, and a slide block.

8. In an internal combustion engine, a piston and piston rod detachably attached thereto, the outer ends of said rod terminating in spaced arms having split eyes for the reception of a transverse shaft, and means to draw said eyes together, the point of connection between the split eyes and the transverse shaft being outside of the piston.

4. In an internal combustion engine, a piston and piston rod detachably attached thereto, the outer ends of said rod terminating in spaced arms having split eyes for the reception of a transverse shaft, means to draw said eyes together, depending pedestals from said eyes adapted to be mounted upon a slide block, a slide block, and bolts to attach said pedestals to said block.

5. In an internal combustion engine, a piston and piston rod detachably attached thereto, the outer ends of said rod terminating in spaced arms having split eyes for the reception of a transverse shaft, means to draw said eyes together, depending pedestals from said eyes adapted to be mounted upon a slide block, a slide block, bolts to attach said pedestals to said. block, and outrods to one another, said piston rods being p tubular.

7. In an internal combustion engine, a piston having a piston rod formed integral therewith on the interior thereof a portie-n of the desired length of the piston rod, a

second piston rod detachably mounted on the Y first rod, said point of connection between the integral piston rod and the detachable piston rod being within the skirt of the piston, a plurality of bolts for attaching the respective parts of the piston rods to one another, said piston rods being tabular, the last mentioned rod having bifurcated spaced parallel arms formed into split eyes for clamping a transverse shaft therebetween, a connecting link mounted on said shaft betwween said arins and eyes, a pedestal to support each of said arms on a common slide block, and a slide block.

8. In an internal combustion engine, a piston, a piston rod, anda splash plate mounted on said piston rod, margins of the splash plate being arranged at a point Vremote from the walls of the cylinder and of the piston. v

9. In an internal combustion engine, a piston, a piston rod, and a splash plate mounted on said piston rod, margins of the splash plate being arranged at a point remote from the walls of the cylinder and of the piston, said piston and piston rod being detachable one from the other.

In testimony whereof, I affix my` signature.

ELMER A. WATTS. 

